From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 864501F463 for ; Wed, 18 Dec 2019 08:54:01 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; q=dns; s=default; b=ow+Xb UbY5sB+yctZxLn2rl7JNfmVhBzOXpZhlLArOaEw8A+mkhgFQGmIAiH5buPkBQm32 pnQ6kGSxtUWLYCpt7rFNMSAZIj7Ri2n497JdM2G6BlfaHAAuKGAKxzkIS3rD0Yq+ mq1eYTQ9xygGtniMhcmV52/6LTbusCcXr4tHcw= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; s=default; bh=I3R3fN9COP5 T1HwG8+1MJYTnxlk=; b=d+WPfCoSEYh5OJoyjaGi4D/2GbeRydF3Ss27XLRQtB0 4Bxl72mMWr2RnQOy8KxbkNTDF06/Dndk4RwX9lT/rP+1agekqUqalAxDMJFb0Z2g 2taw4m819FGB6JHQAIpsryFdP2TkhhGr4pQ7HcTSrSLA+xNiLVRHVE6InqR9dJOc = Received: (qmail 41003 invoked by alias); 18 Dec 2019 08:53:59 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 40994 invoked by uid 89); 18 Dec 2019 08:53:59 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: mx2.suse.de From: Andreas Schwab To: Adhemerval Zanella Cc: libc-alpha@sourceware.org Subject: Re: [PATCH 11/16] linux: Optimize fallback 32-bit clock_gettime References: <20191217214728.2886-1-adhemerval.zanella@linaro.org> <20191217214728.2886-11-adhemerval.zanella@linaro.org> X-Yow: On the road, ZIPPY is a pinhead without a purpose, but never without a POINT. Date: Wed, 18 Dec 2019 09:53:55 +0100 In-Reply-To: <20191217214728.2886-11-adhemerval.zanella@linaro.org> (Adhemerval Zanella's message of "Tue, 17 Dec 2019 18:47:23 -0300") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain On Dez 17 2019, Adhemerval Zanella wrote: > diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c > index 9be1f779e3..2a8ad0acc5 100644 > --- a/sysdeps/unix/sysv/linux/clock_gettime.c > +++ b/sysdeps/unix/sysv/linux/clock_gettime.c > @@ -43,13 +43,21 @@ __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp) > int r; > /* Old 32-bit ABI with possible 64-bit time_t support. */ > # ifdef __NR_clock_gettime64 > + /* Avoid issue a __NR_clock_gettime64 syscall on kernels that do not > + support 64-bit time_t. */ > + static int time64_support = 1; > + if (atomic_load_relaxed (&time64_support) == 1) Just != 0 should be enough. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."